$ git clone -n https://src.fedoraproject.org/rpms/python-botocore.git /var/lib/mock/f45-build-29801-641/root/chroot_tmpdir/scmroot/python-botocore
Cloning into '/var/lib/mock/f45-build-29801-641/root/chroot_tmpdir/scmroot/python-botocore'...
$ git fetch origin 0b87451b3018c4066017fda6fc6d01b29534eba2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-botocore
 * [new ref]         0b87451b3018c4066017fda6fc6d01b29534eba2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0b87451 1.43.109